Home / 1,574.55-2,171.48-1,051.11

Finding the Fourth Proportional to 1,574.55, 2,171.48 and 1,051.11

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Solution

The fourth proportional to 1,574.55, 2,171.48 and 1,051.11 is: 1,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.55 : 2,171.48 = 1,051.11 : x
  2. Step 2: Convert to fraction form
    1,574.55/2,171.48 = 1,051.11/x
  3. Step 3: Cross multiply
    1,574.55x = 2,171.48 × 1,051.11
  4. Step 4: Simplify right side
    1,574.55x = 2,282,459.09
  5. Step 5: Solve for x
    x = 2,282,459.09/1,574.55
  6. Step 6: Final answer
    x = 1,449.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.